Husqvarna P-ZT 54 User manual

P-ZT54 / 996613402
Parts Manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
Gasoline containing up to 10% ethanol (E10) is
acceptable for use in this machine.The use of any
gasoline exceeding 10% ethanol (E10) will void
the product warranty.

©2012 All rights reserved.
Orangeburg, SC Printed in U.S.A.
When you need spare parts or support in service
questions, warranty issues, etc., please consult
the following professional:
Manufacturing Number
The machine’s manufacturing number can be found on
the printed plate affixed to the engine compartment.
Stated on the plate, from the top are:
• The machine’s type designation (I.D.).
• The manufacturer’s type number (Model).
• The machine’s serial number (Serial no.)
Please have the type designation and serial number
available when ordering spare parts.
This manual belongs to the machine with the
manufacturing number:
Engine Transmission
The engine’s manufacturing number is stamped on
one of the valve covers.
The plate states:
• The engine’s model.
• The engine’s type.
• Code
Please have these available when ordering spare
parts.
The wheel motors and hydrostatic pumps have a
barcode decal affixed at the rear.
Accessories Available
DFS Collection System ....................967 004601
Blower for DFS ................................966 407101
Mulch Kit ..........................................966 050401

CONTENTS
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.
FRAME ..................................................................... 4
ENGINE PLATE ........................................................ 6
STEERING ............................................................... 8
IGNITION SYSTEM ................................................ 10
PARKING BRAKE .................................................. 12
HYDRAULIC PUMP-MOTOR ................................. 14
HYDRAULIC FRAME ............................................. 16
WHEELS AND TIRES ............................................ 18
MOWER LIFT / DECK LIFT .................................... 20
MOWING DECK / CUTTING DECK ....................... 22
SEAT ...................................................................... 24
PROTECTION FRAME .......................................... 28

4
FRAME
7
3
2
4
9
10
11
6
5
18
16
14
12
8
1
13
20
19
29
15
28
32
26
35
25
31
23
17
21
22
24
36
33
34
29 27
27
30
30
29
35
34
33
37
33
32
35
34

5
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
FRAME
1.. 574 482801 ...... 1 ...FRAME w/ SFTY DECAL ORG
2.. 576 701302 ...... 1 . . FLOOR PAN ORG
3.. 522 738902 ...... 1 . . BUMPER, REAR ORG
4.. 576 701402 ...... 1 . . PLATE, SKID GRY
5.. 574 433002 ...... 1 . . GUARD, REAR GRY
6.. 574 215702 ...... 1 . . FOOTREST ORG
7.. 576 701502 ...... 1 . . COVER, FAN RT BLK
8.. 576 701602 ...... 1 . . COVER, FAN LT BLK
9.. 576 701702 ...... 1 . . COVER, CENTER BLK
10.. 510 083201 ...... 4 . . MOUNT, F/F INSERT
11.. 529 279603 ...... 1 . . MOUNT, TANK RT RR
12.. 529 279703 ...... 1 . . MOUNT, TANK LT RR
13.. 529 279903 ...... 1 . . MOUNT, TANK RT FRT
14.. 529 280003 ...... 1 . . MOUNT, TANK LT FRT
15.. 576 453602 ...... 2 . . MOUNT, TANK BLK
16.. 510 040301 ...... 2 . . BRACKET, REST MOUNT
17.. 539 102845 ...... 4 . . SPRING, TANK MOUNT
18.. 575 811501 ...... 2 . . BUMPER, ¼-20 STUD 3/8”
19.. 539 102502 ...... 4 . . STUD, FUEL TANK
20.. 539 109867 ...... 1 . . CLAMP, DOUBLE TUBE
21.. 539 104763 ...... 1 . . RETAINER, U TYPE
22.. 539 990072 ...... 8 . . HCS ¼-20 X 5/8
23.. 525 612801 ...... 4 . . HHFS 3/8-16 x 1 HEX FLG
24.. 574 233801 ...... 2 . . HHFS 5/16-18 x 2¼ HEX FLG
25.. 539 131780 ...... 2 . . HHFS 5/16-18 x 3¾ HEX FLG
26.. 525 544001 ...... 2 . . HHFS 5/16-18 x 1¼ TPBLT
27.. 525 464701 ...... 7 . . HHFS 5/16-18 x ¾ HEX FLG
28.. 539 100145 ...... 2 . . RHSNB 3/8-16 x 2
29.. 539 113226 .... 11 . . BOLT 5/16-18 x 1 THD FRM
30.. 539 990858 ...... 6 . . SCREW 5/16-18 x ½ SLF TAP
31.. 539 111028 ...... 2 . . NUTSERT 5/16-18
32.. 521 996501 ...... 2 . . NUT 3/8-16 HEX FLG NYLOC
33.. 539 108120 .... 10 . . NUT ¼-20 HEX THIN NYLOC
34.. 539 112899 .... 14 . . NUT 5/16-18 HEX FLG NYLOC
35.. 539 109600 ...... 8 . . WASHER 5/16 DISC SPRING
36.. 539 990055 ...... 4 . . WASHER ¼ SAE FLAT
37.. 539 990188 ...... 4 . . WASHER 5/16 SAE FLAT

6
ENGINE PLATE
1
26
11
24
Torque to 50-60 Ft-Lbs
14
22
13
3
17
12
9
7
10
4
6
15
16
8
19
18
30
5
25
23
2
20
25
26
29
27
28
21
32
33
28
31
27

7
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
ENGINE PLATE
1.. 510 004602 ...... 1 . . PLATE, ENGINE BLK
2.. 510 019801 ...... 1 . . PULLEY, ENGINE
3.. 525 750201 ...... 1 . . MUFFLER
4.. 539 113437 ...... 1 . . CLUTCH, GT 3.5
5.. 522 676702 ...... 1 . . STOP, CLUTCH
6.. 539 105526 ...... 1 . . FUEL LINE 18"
7.. 539 912222 ...... 2 . . CLAMP
8.. 539 119680 ...... 1 . . ADAPTOR, OIL DRAIN
9.. 505 280001 ...... 1 . . TIE WRAP w/ CLIP
10.. 539 118911 ...... 1 . . PIPE 3/8 NPT x 3"
11.. 539 105072 ...... 1 . . ELBOW 90O
12.. 522 837001 ...... 1 . . PLUG 3/8 NPTF DRAIN
13.. 539 910210 ...... 1 . . KEY ¼ SQ x 2
14.. 539 105308 ...... 1 . . KEY ¼ SQ x 1
15.. 539 109618 ...... 1 . . O-RING
16.. 539 101714 ...... 1 . . SOLENOID
17.. 539 105409 ...... 1 . . GROUND WIRE
18.. 539 102757 ...... 1 . . CABLE, POSITIVE
19.. 539 102759 ...... 2 . . INSULATOR
20.. 525 313901 ...... 1 . . SPACER
21.. 539 104867 ...... 1 . . HCS 7/16-14 x 1¼ HEX NYLOC
22.. 539 990072 ...... 2 . . HCS ¼-20 x 5/8
23.. 539 990563 ...... 4 . . HCS 3/8-16 x 1 HEX NYLOC
24.. 539 100141 ...... 1 . . HCS 7/16-20 x 1½ HEX NYLOC
25.. 539 990208 ...... 4 . . RHSNB 5/16-18 x 1
26.. 574 233801 ...... 3 . . HHFS 5/16-18 x 2¼ HEX FLG
27.. 539 108120 ...... 5 . . NUT ¼-20 HEX THIN NYLOC
28.. 539 112899 ...... 8 . . NUT 5/16-18 HEX FLG NYLOC
29.. 539 102582 ...... 1 . . NUT 7/16-14 HEX WHIZ LK
30.. 539 125626 ...... 1 . . WASHER, BLADE
31.. 539 102593 ...... 4 . . WASHER 3/8 SPRING
32.. 539 990053 ...... 1 . . WASHER ¼ INT TOOTH LK
33.. 539 990247 ...... 1 . . WASHER 7/16 SLW
NOT SHOWN
525 554201 ...... 1 . . ENGINE HARNESS, KAW

8
STEERING
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
26
27
29
30
31
32
33
34
35
36
38
39
18
37
39
30
30
28
33
34
34
33

9
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
STEERING
1.. 577 327702 ...... 1 . . FRAME, SEAT MOUNT ORG
2.. 577 251701 ...... 2 . . BRACKET, CONTROL
3.. 577 265801 ...... 2 . . BRACKET, DAMPENER
4.. 574 269401 ...... 2 . . LEVER, MOTION
5.. 577 042403 ...... 1 . . LEVER, w/ GRIP, RT
577 042303 ...... 1 . . LEVER, w/ GRIP, LT
6.. 576 140302 ...... 2 . . LEVER, CONTROL
7.. 539 130894 ...... 2 . . GRIP, LEVER
8.. 539 020035 ...... 1 . . SPRING
9.. 576 850301 ...... 1 . . SPRING
10.. 539 102845 ...... 1 . . SPRING
11.. 532 109553 ...... 2 . . SWITCH
12.. 539 113792 ...... 1 . . SWITCH, BRAKE (3-POLE)
13.. 516 020301 ...... 2 . . DAMPENER ASSY
14.. 577 251801 ...... 2 . . BLOCK, TRACKING
15.. 539 131519 ...... 2 . . PLATE, TAPPED
16.. 575 811501 ...... 2 . . BUMPER
17.. 539 131518 ...... 4 . . BEARING, FLANGE
18.. 511 594901 ...... 1 . . BUSHING ¼ FLANGE
19.. 511 595001 ...... 1 . . LINK, SWITCH
20.. 539 110607 ...... 2 . . BALL STUD 10MM
21.. 577 252401 ...... 2 . . SPACER, PIVOT
22.. 539 131799 ...... 1 . . KNOB
23.. 522 849702 ...... 4 . . MOUNT, BLK
24.. 539 104763 ...... 4 . . RETAINER, U TYPE
25.. 539 100469 ...... 1 . . HCS 5/16-18 x 1¼ TPBLT
26.. 539 101332 ...... 2 . . HCS ½-13 x 2¾
27.. 539 990074 ...... 1 . . RHSNB ¼-20 x ¾ GR2
28.. 574 822701 ...... 4 . . SCREW 10-24 x ¾ SKT HD
29.. 576 850402 ...... 2 . . SCREW 5/16-18 x 1¾ BTN HD
30.. 525 464701 .... 20 . . HHFS 5/16-18 x ¾ HEX FLG
31.. 525 612801 ...... 4 . . HHFS 3/8-16 x 1 HEX FLG
32.. 539 108010 ...... 2 . . NUT ½-13 HEX JAM NYL GR2
33.. 539 112899 .... 20 . . NUT 5/16-18 HEX FLG NYLOC
34.. 539 108120 ...... 4 . . NUT ¼-20 HEX THIN NYLOC
35.. 539 102234 ...... 1 . . NUT ¼ PUSH
36.. 539 990717 ...... 2 . . NUT 5/16-18 HEX NYLOC
37.. 539 913847 ...... 2 . . NUT 3/8 RETAINER
38.. 539 990188 ...... 3 . . WASHER 5/16 SAE FLAT
39.. 539 990187 ...... 2 . . WASHER 5/16 SLW
NOT SHOWN
510 093601 ...... 1 . . HARNESS, MAIN WIRING

10
IGNITION SYSTEM
6
7
8
5
9
16
15
17
14
13
11
1
2
3
10
33
31
44
32
22
46
26
4
20
18
19
24
23 25
34
35
37
38
29
30
36
12
21
27
45
40
40
45
41
28
43
39
42

11
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
IGNITION SYSTEM
1.. 576 369202 ...... 1 . . TANK ASSY, RT GRY
2.. 576 369102 ...... 1 . . TANK ASSY, LT GRY
3.. 529 280202 ...... 1 . . PANEL, CONTROL
4.. 574 514001 ...... 1 . . TIMER, SEAT
5.. 532 401763 ...... 1 . . HOUR METER
6.. 574 455401 ...... 1 . . SWITCH, IGNITION
7.. 539 131627 ...... 1 . . SWITCH, PTO 10 AMP
8.. 574 455501 ...... 1 . . KEY, IGNITION
9.. 574 206901 ...... 1 . . CABLE, CHOKE
10.. 574 207001 ...... 1 . . CABLE, THROTTLE
11.. 539 132624 ...... 1 . . KNOB
12.. 539 102436 ...... 1 . . BATTERY
13.. 575 018101 ...... 2 . . CAP w/ TETHER, FUEL
14.. 576 618101 ...... 2 . . VALVE, FUEL CHECK
15.. 539 102679 ...... 1 . . VALVE, FUEL
16.. 522 718701 ...... 1 . . CABLE, POSITIVE
17.. 522 710701 ...... 1 . . CABLE, NEGATIVE
18.. 539 103178 ...... 1 . . CAP, IGNITION SWITCH
19.. 539 912222 ...... 4 . . CLAMP, HOSE
20.. 575 436501 ...... 6 . . CLAMP, HOSE
21.. 577 103901 ...... 1 . . LINE 22" FUEL
22.. 577 103902 ...... 1 . . LINE 38" FUEL
23.. 576 660603 ...... 1 . . HOSE 3/16 21"
24.. 576 660601 ...... 1 . . HOSE 3/16 39"
25.. 576 660604 ...... 1 . . HOSE 3/16 30"
26.. 576 547701 ...... 1 . . VAPOR LINE ASSY
27.. 539 102759 ...... 2 . . INSULATOR
28.. 574 235301 ...... 1 . . LOOM 5/8 SPLIT
29.. 577 104002 ...... 1 . . BRACKET, VALVE
30.. 510 029902 ...... 1 . . BRACKET, BATTERY BLK
31.. 510 030001 ...... 1 . . BRACKET, BATTERY MOUNT
32.. 510 064001 ...... 2 . . J HOOK
33.. 574 206602 ...... 1 . . TEE 3/16 FUEL LINE
34.. 539 105245 ...... 2 . . GROMMET, RUBBER
35.. 576 618201 ...... 2 . . GROMMET, CHECK VALVE
36.. 539 105974 ...... 1 . . GROMMET
37.. 525 865401 ...... 2 . . FITTING, FUEL
38.. 539 990580 ...... 1 . . HCS ¼-20 x ¾
39.. 539 990316 ...... 2 . . RHSNB 5/16-18 x ¾
40.. 574 822701 ...... 4 . . SCREW 10-24 x ¾ SKT HD
41.. 539 114341 ...... 3 . . SCREW 10-24 x 3/8 SKT HD
42.. 539 990997 ...... 2 . . WINGNUT ¼-20 NYLOC
43.. 539 112899 ...... 2 . . NUT 5/16-18 HEX FLG NYLOC
44.. 539 108120 ...... 1 . . NUT ¼-20 HEX THIN NYLOC
45.. 539 976977 ...... 4 . . NUT 10-24 HEX NYLOC
46.. 539 990598 ...... 1 . . WASHER ¼ FLAT

12
PARKING BRAKE
8
7
5
4
2
1
14
12
11
9
19
16
16
13
18
20
23
22
6
21
17
10
15
3
7
6
22
13
24
23
18

13
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
PARKING BRAKE
1.. 576 416301 ...... 1 . . SHAFT, BRAKE
2.. 576 416401 ...... 1 . . ARM, RT BRAKE
3.. 515 980002 ...... 1 . . LEVER, BRAKE
4.. 539 976526 ...... 1 . . GRIP, LEVER
5.. 515 980301 ...... 1 . . LINK, FOLLOWER
6.. 576 764001 ...... 2 . . SPACER, SHAFT
7.. 539 131518 ...... 2 . . BEARING, FLANGE
8.. 539 976481 ...... 2 . . YOKE
9.. 522 705902 ...... 2 . . CLEVIS SPRING
10.. 576 459501 ...... 2 . . LINKAGE, BRAKE
11.. 575 229802 ...... 2 . . BRACKET, BRAKE
12.. 575 230301 ...... 1 . . SPRING
13.. 539 132161 ...... 6 . . BUSHING, BRAKE
14.. 539 110631 ...... 1 . . ROLL PIN 5/16" DIA.
15.. 539 110303 ...... 2 . . BOLT 5/16 SHOULDER
16.. 539 100413 ...... 3 . . RHSNB 3/8-16 x 1¼
17.. 539 923463 ...... 1 . . HHFS 3/8-16 x 3¼
18.. 539 200282 ...... 3 . . NUT 3/8-16 HEX JAM NYLOC
19.. 539 110943 ...... 2 . . NUT 5/16-24 HEX NYLOC
20.. 539 990223 ...... 2 . . NUT 5/16-24 HEX
21.. 539 115617 ...... 2 . . NUT 5/16-18 HEX NYLOC
22.. 539 133007 ...... 2 . . WASHER, WAVE
23.. 525 490901 ...... 2 . . WASHER, FRICTION
24.. 539 912063 ...... 1 . . WASHER, CONE

14
HYDRAULIC PUMP-MOTOR
16
15
10
3
14
5
8
11
9
2
20
1
22
4
17
17
17
22
21
7
6
9
15
18
19 18
12 13

15
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
HYDRAULIC PUMP-MOTOR
1.. 574 569102 ...... 1 . . TRANS, ZT-3400, RT
2.. 574 569101 ...... 1 . . TRANS, ZT-3400, LT
3.. 539 131618 ...... 1 . . LINKAGE, RT BYPASS
4.. 539 131616 ...... 1 . . LINKAGE, LT BYPASS
5.. 576 415701 ...... 2 . . LINKAGE, CONTROL ASSY
6.. 522 559201 ...... 2 . . LINKAGE, CONTROL FT
7.. 574 811301 ...... 2 . . TANK, EXPANSION
8.. 576 422701 ...... 1 . . SHAFT, TIE ROD
9.. 539 976988 ...... 2 . . HAIRPIN COTTER
10.. 539 113466 ...... 2 . . FILTER, HYDRO
11.. 576 943701 ...... 2 . . HOSE, EXPANSION
12.. 539 102590 ...... 4 . . BALL END, RT
13.. 539 109149 ...... 2 . . TURNBUCKLE 3/8
14.. 576 667201 ...... 1 . . BELT
15.. 525 544001 ...... 4 . . HHFS 5/16-18 x 1¼ TPBLT
16.. 539 108551 ...... 4 . . HCS 3/8-16 x 2¼ GR8
17.. 539 112899 ...... 6 . . NUT 5/16-18 HEX FLG NYLOC
18.. 539 990223 ...... 4 . . NUT 5/16-24 HEX
19.. 539 108732 ...... 2 . . NUT 3/8-24 HEX JAM
20.. 539 990122 ...... 2 . . WASHER 3/8 SAE FLT
21.. 539 990118 ...... 2 . . WASHER 3/8 SPLT LK
22.. 539 990692 ...... 4 . . WASHER 5/16 STD FLT
NOT SHOWN
580 906202 ...... 2 . . SPACER, WHEEL

16
HYDRAULIC FRAME
1
2
3
5
6
7
89
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
8
11
12
16
18 19
25
27
27
27
29
28
29
28
27
4

17
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
HYDRAULIC FRAME
1.. 576 415802 ...... 1 . . MOUNT, TRANS RT BLK
2.. 576 415902 ...... 1 . . MOUNT, TRANS LT BLK
3.. 576 459902 ...... 1 . . MOUNT, IDLER BLK
4.. 576 416203 ...... 1 . . MOUNT, FT BLK
5.. 539 104763 ...... 4 . . RETAINER, U TYPE
6.. 539 102587 ...... 2 . . GROMMET, BUMPER
7.. 510 041603 ...... 1 . . ARM, IDLER w/ BEARINGS
8.. 525 435601 ...... 2 . . PIVOT, IDLER
9.. 510 206301 ...... 1 . . PIVOT, BEARING
10.. 539 114662 ...... 1 . . SHIELD, DUST
11.. 510 254501 ...... 2 . . SHIELD, DUST
12.. 539 976688 ...... 2 . . PULLEY, IDLER
13.. 575 470901 ...... 1 . . SPRING, EXTENSION
14.. 576 459801 ...... 1 . . BRACKET, SPRING
15.. 525 866201 ...... 1 . . HHFS 3/8-16 x 2
16.. 574 233801 ...... 4 . . HHFS 5/16-18 x 2¼ HEX FLG
17.. 521 996601 ...... 2 . . HHFS 3/8-16 x 4
18.. 525 612801 ...... 4 . . HHFS 3/8-16 x 1
19.. 525 544801 ...... 4 . . HHFS ½-13 x 4 GR 8
20.. 525 465401 ...... 4 . . HHFS 5/16-18 x 1½
21.. 539 101721 ...... 4 . . HCS 5/16-18 x 2¾
22.. 539 103433 ...... 1 . . HCS ½-13 x 3¼
23.. 539 109345 ...... 1 . . RHSNB 3/8-16 x 1½
24.. 539 128101 ...... 1 . . BOLT 3/8-16 x 2½ CARRIAGE
25.. 539 200282 ...... 2 . . NUT 3/8-16 HEX JAM NYLOC
26.. 539 990613 ...... 1 . . NUT 3/8-16 HEX WHIZLK
27.. 521 996501 ...... 8 . . NUT 3/8-16 HEX FLG NYLOC
28.. 521 991101 ...... 5 . . NUT ½-13 HEX FLG NYLOC
29.. 539 112899 ...... 3 . . NUT 5/16-18 HEX FLG NYLOC
30.. 539 990585 ...... 1 . . NUT 5/16-18 HEX WHIZLK
31.. 539 990188 ...... 4 . . WASHER 5/16 SAE FLAT
32.. 522 023401 ...... 1 . . WASHER 3/8 THICK
33.. 539 115528 ...... 1 . . WASHER ½ BELLEVILLE
34.. 539 109554 ...... 1 . . WASHER ½ FLAT
35.. 539 106504 ...... 1 . . WASHER, HEAVY

18
WHEELS AND TIRES
5
6
1
10
9
11
4
3
2
5
8
16
13
15
14 12
17
19
20
7
18

19
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
WHEELS AND TIRES
1.. 539 105521 ...... 2 . . TIRE ASSY 13 x 6.5
2.. 539 105522 ...... 2 . . TIRE
3.. 539 105523 ...... 2 . . RIM
4.. 510 034301 ...... 2 . . SEAL, BEARING
5.. 510 034403 ...... 4 . . CONE
6.. 539 101474 ...... 2 . . ZERK
7.. 539 103300 ...... 2 . . ZERK
8.. 539 912234 ...... 4 . . STEM, VALVE
9.. 539 105518 ...... 4 . . SPACER, AXLE
10.. 510 034001 ...... 2 . . CAP, DUST
11.. 525 611902 ...... 2 . . FORK, CASTER
12.. 522 905101 ...... 2 . . TIRE ASSY 23 x 8.5
13.. 522 905102 ...... 2 . . RIM
14.. 539 107431 ...... 2 . . TIRE 23 x 10.5 TURF MASTER
15.. 539 105517 ...... 2 . . BOLT ½-13 x 9½ HEX NYLOC
16.. 521 991101 ...... 2 . . NUT ½-13 HEX FLG NYLOC
17.. 522 842601 ...... 2 . . NUT ¾-16 HEX THIN NYLOC
18.. 539 101173 ...... 8 . . NUT, LUG
19.. 539 990250 ...... 2 . . WASHER ½ SAE
20.. 574 824701 ...... 2 . . WASHER ¾ HARDENED

20
MOWER LIFT / DECK LIFT
2
14
20
19
22
15
17
3
16
21
27
10
8
11
4
9
12
13
1
26
23
24
25
32
28
33 34
44
30
31
29
37
35
39
36
38
42
45
43
46
18
6
7
5
17
22
40
41
41
41
41
41
40
43
44